How a Medical Practice Elected S Corporation Status and Set Defensible Compensation

The physician who came to us said, "my friend told me I should be an S corp," which is how roughly half of these engagements start. What she actually had was a single-member LLC reporting on Schedule C, net income of about $410,000, and self-employment tax of over $23,000 on top of income tax, none of which anyone had modeled against the alternative before her friend made the suggestion.

She had also been paying estimated taxes inconsistently, sending in round numbers a few times a year based on what was in the operating account rather than a calculated safe harbor amount, which had triggered an underpayment penalty the previous year that her prior preparer had not flagged until the return was filed.

The practice had grown steadily for four years but she had never taken a formal salary. All profit simply accumulated in the business checking account and she withdrew from it as needed, which meant there was no payroll history, no state unemployment registration, and nothing an IRS examiner could point to as reasonable compensation if the S election were ever made and questioned.

The cost of staying on Schedule C was straightforward: every dollar of net practice income above the wage base was subject to the full 2.9 percent Medicare portion of self-employment tax with no offsetting distribution structure available, and she was leaving a meaningful and legal tax savings opportunity on the table simply because no one had built the analysis and set it up correctly.

We do not recommend an S election on a rule of thumb like "once you clear $80,000 in profit." We build a side-by-side projection comparing total tax cost under Schedule C against S corporation status at several different salary levels, because the salary you choose determines most of the benefit and most of the audit risk, and it needs to be defensible, not just convenient.

We considered filing Form 8832 to elect C corporation treatment first and layering the S election on top, which is occasionally useful for entities with existing complexities, but ruled it out here since her LLC had no history that required that intermediate step. A direct S election via Form 2553, filed timely with the retroactive effective date rules, was the cleaner path.

On compensation, we considered a lower salary near $90,000 to maximize the self-employment tax savings, but ruled that out after running a reasonable compensation study, because a salary that low relative to what comparable physicians earn in her specialty and geographic market would have been the first thing an IRS examiner challenged, and the entire strategy depends on the salary holding up.

We filed Form 2553 to elect S corporation status for the LLC, using the relief provisions for late election since her request came partway through the year, along with a reasonable cause statement documenting that the delay was due to not having been previously advised of the option. The IRS processed the election within about sixty days and confirmed the effective date requested.

We ran a reasonable compensation study using RCReports, benchmarking her specialty, hours worked, geographic market, and practice revenue against comparable physician compensation data, which supported a salary of $118,000. That figure, along with the underlying methodology and comparable data, was documented and kept on file in case the salary is ever questioned on examination.

We set up payroll through Gusto, including state unemployment registration, quarterly Form 941 filings, and annual Form 940, and structured her withholding so that federal and state tax on the salary portion is covered through payroll rather than estimated payments, with the remaining profit distributed and covered by quarterly estimates.

We recalculated her quarterly estimated tax payments using the annualized income method rather than round numbers, tied to actual quarter-to-date practice income, and set calendar reminders so the payments go out through EFTPS on schedule going forward.

The S corporation structure, with the $118,000 salary supported by the reasonable compensation study, is projected to save approximately $34,600 per year in self-employment tax compared to remaining on Schedule C at her current income level, with the remaining profit distributed free of self-employment tax.

The prior year's underpayment penalty was a one-time cost, but her quarterly payments have been accurate and on time in every quarter since the annualized method was put in place, and she is no longer surprised by her tax bill at filing time.

She now draws a regular paycheck like any employee, which has made personal budgeting and mortgage qualification simpler since a lender can see consistent W-2 income rather than reconstructing income from a Schedule C. She also has documentation on file that supports her compensation decision if it is ever questioned, rather than an informal number picked without analysis.